What is an eReader ?

In the scope of the reference
architecture, an eReader is any electronic device which allows to
read. This is a very broad definition. There are at least three types
of devices which correspond to this definition :

An eReader is also recognized
by its ergonomic qualities. It is a device which provides a superior
experience for reading electronic documents.

In this document it is
sometimes referred to the “Applications of ePaper” (origin of the
name of the site www.appepaper.com).
It means an application or a scenario which makes use of a eReader as
one of its important element.